Handling errors in defer

Question

I have a function which open db connection and return it. Or error, if something happened:

OpenDbConnection(connectionString string, logSql bool) (*gorm.DB,          


        

Answer 1

You can name your returning error variable and initialize anywhere inside the function.

check this test code here

OpenDbConnection(connectionString string, logSql bool) (db *gorm.DB, err error) {

    logger := zap.NewExample().Sugar()
    defer func() {
        err = logger.Sync()
    }()

    // some logic here

    return db, err

}